Sectional steam-boiler



(No Model.)

. D. L. ADAMS.

SEGTIONAL STEAM BOILER. No; 268,692. Patented D0045, 1882:

14% 92. i V k most-simple and most effectual plan for quick DANIEL L.ADAMS, OF POTTSVILLE, PENNSYLVANIA.

SECTIONAL STEAM-BOILER.

SPECIFICATION forming part Of Letters Patent .NO. 268,592, datedDecember 5, 1882.

i Application filed May 15, 1882. (No model.)

.To all whom it may concern Be it known that I. DANIEL L. ADAMS, acitizen of the United States, residing at Pottsville,in the county ofSchuylkill and State of Pennsylvania, have invented certain new anduseful Improvements in Sectional Steam-Boilers; and I do declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same,

reference being had to the acco n1 pan yinl'g draw-.

ings, and to the letters and figures of reference marked thereon,whichform apart of this specification.

Figure 1 is a vertical elevation of my improved steam heating-furnace,a. portion of one wall being removed for the purpose of showing itsinternal construction. Fig.2 is a horizontal section on line moot Fig.1, and Fig.3 represents detail views of the sectional grate.

Like letters of reference are used to designate the same parts in theseveral views.

A denotes the furnace-walls. B is the grate, O is the fire-door, and Dis a door that communicates with the ash-pit.

The boiler is constructed in sections on the generation of steam. Itconsists of a series of horizontal pipes, E, forming the top of theboiler or steam generator, a series of inclined pipes, F, communicatingwith the horizontal pipes, and a series of double inclined tubes, G,

. provided with elbows and arranged to communicate with the large pipesE and F. The

tubes Gr, connecting the pipes E and F, are arranged in pairs, as shownin Fig. 2, and may be of any desired number, according to the size. ofthe furnace; The pipes E F are preferably composed of cast-iron, whilethe tubes G are made of wrough t-iron. The pipes F are flanged at theirlower ends, and are bolted to flanged elbows or branches that are formedon a muddrum, H, which is arranged transversely in the lower part of thefurnace behind the bridgewall I, as shown in Figs. 1 and 2. The upperends of the pipes F are also flanged for connection with flangedbranches formed on thehorizontal pipes E, as shown in Fig. 1. The pipesE F and connecting-tubes G are arranged across the furnace in such a wayas to nearly fill the space above and to the rear of the grate, thecontents of the pipes and tubes being thus thoroughly exposed to theinfluence of the heated air. 7

-It will be seen that-the tubes Gare inclined back toward the rearpipes, F, and are elbowed into the upper pipes, E, at nearly a rightangle, the inclination of the elbow being slightly forward. By thismanner of arranging the pipes and tubes a positivecirculation issecured, and

all sediment is permitted to drop freely into the mud-drum through therear pipes, F.

At the top of the furnace and communicating with the rear ends of thehorizontal pipes E is a steam-drum, K, which is also made in sections,that are suitably flanged and bolted together, so that the length of thedrum may be readily made to correspond with the width of the furnace andwith the number of horizontal pipes employed in the construction of thesteam-generator.

The sectional grate B is composed of the independent or separate bars a,which are T- shaped in cross-section. These grate-bars are provided ateach end with pins or projections b I), by means of which they arepivoted in I bearings c c at the front and back.

At the frontend of each grate-bar is a downward extension having a pin,d, that connects with a sliding bar or link, 6, to which each grate-baris thus connected. This link has a pin,f, which is connected by ayoke,g, with a rod, h, to which is attached alevenz', whereby all thebars may be shaken or rocked at once, thus grinding up the cinders andshaking out the dust and ashes. The upper surfaces of the grate-bars aare formed with interlocking lugs or projections, as shown in Fig. 2,thus forming a nearly-solid grate-surface without interfering with thedraft, the lugs or projections also. serving to break or grind thecinders when the bars are moved or rocked.

It will be seen that any of these grate-bars when worn or broken can bereadily removed and replaced without interfering with the others. Atthefront and sides of the furnace are doors or openings k k, by whichaccess is had for the purpose of cleaning the-pipes and tubes. Thefire-door and ash-door are provided with automatic catches m to holdthem open while feeding the fire or removing ashes.

The construction of the furnace is such, the wrought-iron tubes G beingdirectly over the fire, that the heat ascends between and around cept inthe manner described. The bridge-' wall I, being near the center of thelower tubes and in the rear of the fire-place and grate, assists inguiding the heat over the entire heating-surface of the steam-generatingpipes. The water contained in the pipes E F and tubesGr is thus fullyexposed to the heat of the furnace, and steam is rapidly generated andpassed to the drum K, whence it may be conducted to any desired points.The boiler is fed from below through a pipe, M, that enters at one endof the mud-drum H, and a water-line is preferably maintained at aboutthe center of the horizontal pipes E, the upper portions of which form asteam-space.

It will be seen that the inclined position of the pipes F and tubes G issuch that while the circulation is rapidly maintained the sediment iscaused to gravitateinto the mud-drum with-- outinterruption orhinderance. This construction also obviates the disagreeablerattling andclanging incident to many steam-heaters.

While all the parts of the apparatus are formed in detachable sections,there will be no difficulty in adj usting the capacity of the heateraccording to the requirements of the situation in which it is to beplaced.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

A steam heating apparatus consisting of a sectional boiler composed ofthe upper horizontal pipes,E E, rear inclined pipes, F F, and doubleinclined connecting-tubes G G, the mud-drum H, communicating with thelower ends of the pipes F, the feed-pipe M, entering the mud-drum, andthe sectional steam-drum K,connecting with the upper horizontalboilerpipes, all constructed and combined as and for the purposedescribed.

In testimony whereof I affix my signature in presence of two witnesses.

DANIEL L. ADAMS.

\Vitnesses:

Fans. B. BANNAN, JOHN R. BANNAN.

